CA2114548A1 - Procede de marquage de documents - Google Patents

Procede de marquage de documents

Info

Publication number
CA2114548A1
CA2114548A1 CA002114548A CA2114548A CA2114548A1 CA 2114548 A1 CA2114548 A1 CA 2114548A1 CA 002114548 A CA002114548 A CA 002114548A CA 2114548 A CA2114548 A CA 2114548A CA 2114548 A1 CA2114548 A1 CA 2114548A1
Authority
CA
Canada
Prior art keywords
original
image
marking
fourier transform
mark
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
CA002114548A
Other languages
English (en)
Inventor
Murat Kunt
Josef Bigun
Benoit Duc
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ecole Polytechnique Federale de Lausanne EPFL
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2114548A1 publication Critical patent/CA2114548A1/fr
Abandoned legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/04—Preventing copies being made of an original
    • G03G21/043—Preventing copies being made of an original by using an original which is not reproducible or only reproducible with a different appearence, e.g. originals with a photochromic layer or a colour background
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/00838—Preventing unauthorised reproduction
    • H04N1/00883—Auto-copy-preventive originals, i.e. originals that are designed not to allow faithful reproduction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
    • H04N2201/3201—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
    • H04N2201/3269—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title of machine readable codes or marks, e.g. bar codes or glyphs
    • H04N2201/327—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title of machine readable codes or marks, e.g. bar codes or glyphs which are undetectable to the naked eye, e.g. embedded codes

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Security & Cryptography (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Editing Of Facsimile Originals (AREA)
  • Cleaning In Electrography (AREA)
  • Printing Methods (AREA)
CA002114548A 1992-05-29 1993-05-26 Procede de marquage de documents Abandoned CA2114548A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH173292 1992-05-29
CH1732/92-1 1992-05-29

Publications (1)

Publication Number Publication Date
CA2114548A1 true CA2114548A1 (fr) 1993-12-09

Family

ID=4217304

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002114548A Abandoned CA2114548A1 (fr) 1992-05-29 1993-05-26 Procede de marquage de documents

Country Status (5)

Country Link
US (1) US5524933A (fr)
EP (1) EP0597056A1 (fr)
JP (1) JPH06511611A (fr)
CA (1) CA2114548A1 (fr)
WO (1) WO1993025038A1 (fr)

Families Citing this family (70)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5721788A (en) * 1992-07-31 1998-02-24 Corbis Corporation Method and system for digital image signatures
WO1995027627A1 (fr) * 1992-10-01 1995-10-19 Joh. Enschedé En Zonen Grafische Inrichting B.V. Procede de realisation d'une image codee, original comprenant l'image codee et photocopieuse servant a copier l'original
EP0642060B1 (fr) * 1993-09-03 1999-04-07 Kabushiki Kaisha Toshiba Appareil pour l'insertion stéganographique d'information dans des images en couleur
US6983051B1 (en) 1993-11-18 2006-01-03 Digimarc Corporation Methods for audio watermarking and decoding
US5748763A (en) 1993-11-18 1998-05-05 Digimarc Corporation Image steganography system featuring perceptually adaptive and globally scalable signal embedding
US6757406B2 (en) 1993-11-18 2004-06-29 Digimarc Corporation Steganographic image processing
CA2174413C (fr) 1993-11-18 2009-06-09 Geoffrey B. Rhoads Methodes et appareils steganographiques
US6611607B1 (en) 1993-11-18 2003-08-26 Digimarc Corporation Integrating digital watermarks in multimedia content
US5832119C1 (en) 1993-11-18 2002-03-05 Digimarc Corp Methods for controlling systems using control signals embedded in empirical data
US5768426A (en) 1993-11-18 1998-06-16 Digimarc Corporation Graphics processing system employing embedded code signals
US5636292C1 (en) 1995-05-08 2002-06-18 Digimarc Corp Steganography methods employing embedded calibration data
US6681028B2 (en) 1995-07-27 2004-01-20 Digimarc Corporation Paper-based control of computer systems
US6614914B1 (en) 1995-05-08 2003-09-02 Digimarc Corporation Watermark embedder and reader
US6516079B1 (en) 2000-02-14 2003-02-04 Digimarc Corporation Digital watermark screening and detecting strategies
US5710834A (en) 1995-05-08 1998-01-20 Digimarc Corporation Method and apparatus responsive to a code signal conveyed through a graphic image
US7171016B1 (en) 1993-11-18 2007-01-30 Digimarc Corporation Method for monitoring internet dissemination of image, video and/or audio files
US6681029B1 (en) 1993-11-18 2004-01-20 Digimarc Corporation Decoding steganographic messages embedded in media signals
US6580819B1 (en) 1993-11-18 2003-06-17 Digimarc Corporation Methods of producing security documents having digitally encoded data and documents employing same
US5841886A (en) 1993-11-18 1998-11-24 Digimarc Corporation Security system for photographic identification
US6122403A (en) * 1995-07-27 2000-09-19 Digimarc Corporation Computer system linked by using information in data objects
US6944298B1 (en) 1993-11-18 2005-09-13 Digimare Corporation Steganographic encoding and decoding of auxiliary codes in media signals
US5748783A (en) 1995-05-08 1998-05-05 Digimarc Corporation Method and apparatus for robust information coding
US6449377B1 (en) 1995-05-08 2002-09-10 Digimarc Corporation Methods and systems for watermark processing of line art images
US5822436A (en) 1996-04-25 1998-10-13 Digimarc Corporation Photographic products and methods employing embedded information
US6522770B1 (en) 1999-05-19 2003-02-18 Digimarc Corporation Management of documents and other objects using optical devices
US7724919B2 (en) * 1994-10-21 2010-05-25 Digimarc Corporation Methods and systems for steganographic processing
US6560349B1 (en) 1994-10-21 2003-05-06 Digimarc Corporation Audio monitoring using steganographic information
US6948070B1 (en) 1995-02-13 2005-09-20 Intertrust Technologies Corporation Systems and methods for secure transaction management and electronic rights protection
US7133846B1 (en) 1995-02-13 2006-11-07 Intertrust Technologies Corp. Digital certificate support system, methods and techniques for secure electronic commerce transaction and rights management
US6658568B1 (en) 1995-02-13 2003-12-02 Intertrust Technologies Corporation Trusted infrastructure support system, methods and techniques for secure electronic commerce transaction and rights management
CN100452071C (zh) * 1995-02-13 2009-01-14 英特特拉斯特技术公司 用于安全交易管理和电子权利保护的系统和方法
US6157721A (en) 1996-08-12 2000-12-05 Intertrust Technologies Corp. Systems and methods using cryptography to protect secure computing environments
US5892900A (en) 1996-08-30 1999-04-06 Intertrust Technologies Corp. Systems and methods for secure transaction management and electronic rights protection
US5943422A (en) 1996-08-12 1999-08-24 Intertrust Technologies Corp. Steganographic techniques for securely delivering electronic digital rights management control information over insecure communication channels
US6813366B1 (en) * 1995-05-08 2004-11-02 Digimarc Corporation Steganographic decoding with transform to spatial domain
US6721440B2 (en) 1995-05-08 2004-04-13 Digimarc Corporation Low visibility watermarks using an out-of-phase color
US6744906B2 (en) 1995-05-08 2004-06-01 Digimarc Corporation Methods and systems using multiple watermarks
US6829368B2 (en) 2000-01-26 2004-12-07 Digimarc Corporation Establishing and interacting with on-line media collections using identifiers in media signals
US6788800B1 (en) 2000-07-25 2004-09-07 Digimarc Corporation Authenticating objects using embedded data
US6577746B1 (en) 1999-12-28 2003-06-10 Digimarc Corporation Watermark-based object linking and embedding
US7171018B2 (en) 1995-07-27 2007-01-30 Digimarc Corporation Portable devices and methods employing digital watermarking
US6411725B1 (en) 1995-07-27 2002-06-25 Digimarc Corporation Watermark enabled video objects
US7051086B2 (en) 1995-07-27 2006-05-23 Digimarc Corporation Method of linking on-line data to printed documents
US6408331B1 (en) 1995-07-27 2002-06-18 Digimarc Corporation Computer linking methods using encoded graphics
US6229924B1 (en) * 1996-05-16 2001-05-08 Digimarc Corporation Method and apparatus for watermarking video images
US7130442B2 (en) * 1996-10-28 2006-10-31 International Business Machines Corporation Protecting images with an image watermark
JPH10145584A (ja) 1996-11-15 1998-05-29 Canon Inc 画像処理装置及び方法及び方法を記憶した記憶媒体
JP3649537B2 (ja) * 1996-11-27 2005-05-18 日本アイ・ビー・エム株式会社 データハイディング方法及びデータ抽出方法
FI105418B (fi) * 1997-01-24 2000-08-15 Nokia Multimedia Network Termi Varmennuskoodin kätkeminen sähköiseen signaaliin
US7092914B1 (en) * 1997-11-06 2006-08-15 Intertrust Technologies Corporation Methods for matching, selecting, narrowcasting, and/or classifying based on rights management and/or other information
US6804376B2 (en) 1998-01-20 2004-10-12 Digimarc Corporation Equipment employing watermark-based authentication function
US6351537B1 (en) 1998-10-05 2002-02-26 3M Innovative Properties Company Verifiable holographic article
US6335794B1 (en) * 1998-12-23 2002-01-01 Hewlett-Packard Company Detection and deterrence of counterfeiting of two-sided documents
US8103542B1 (en) 1999-06-29 2012-01-24 Digimarc Corporation Digitally marked objects and promotional methods
US6608919B1 (en) * 1999-11-10 2003-08-19 Digimarc Corporation Method and apparatus for encoding paper with information
US6625297B1 (en) 2000-02-10 2003-09-23 Digimarc Corporation Self-orienting watermarks
US6804377B2 (en) 2000-04-19 2004-10-12 Digimarc Corporation Detecting information hidden out-of-phase in color channels
US7111168B2 (en) * 2000-05-01 2006-09-19 Digimarc Corporation Digital watermarking systems
US7063264B2 (en) 2001-12-24 2006-06-20 Digimarc Corporation Covert variable information on identification documents and methods of making same
ATE509326T1 (de) 2001-12-18 2011-05-15 L 1 Secure Credentialing Inc Mehrfachbildsicherheitsmerkmale zur identifikation von dokumenten und verfahren zu ihrer herstellung
US7694887B2 (en) 2001-12-24 2010-04-13 L-1 Secure Credentialing, Inc. Optically variable personalized indicia for identification documents
CA2470600C (fr) 2001-12-24 2009-12-22 Digimarc Id Systems, Llc Systemes, compositions et procedes de gravure au laser en couleur de documents d'identification
US7728048B2 (en) 2002-12-20 2010-06-01 L-1 Secure Credentialing, Inc. Increasing thermal conductivity of host polymer used with laser engraving methods and compositions
US7824029B2 (en) 2002-05-10 2010-11-02 L-1 Secure Credentialing, Inc. Identification card printer-assembler for over the counter card issuing
AU2003256230A1 (en) * 2002-07-31 2004-02-25 Crimsonlogic Pte Ltd Watermarking
WO2004049242A2 (fr) 2002-11-26 2004-06-10 Digimarc Id Systems Systemes et procedes de gestion et de detection de fraudes dans des bases de donnees d'images utilisees avec des documents d'identification
US7712673B2 (en) 2002-12-18 2010-05-11 L-L Secure Credentialing, Inc. Identification document with three dimensional image of bearer
US7225991B2 (en) 2003-04-16 2007-06-05 Digimarc Corporation Three dimensional data storage
US7744002B2 (en) 2004-03-11 2010-06-29 L-1 Secure Credentialing, Inc. Tamper evident adhesive and identification document including same
JP2006087034A (ja) * 2004-09-17 2006-03-30 Ricoh Co Ltd 画像制御システム、画像制御装置、画像形成装置、画像制御方法、画像制御プログラム、および記録媒体

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4579370A (en) * 1982-09-10 1986-04-01 Burroughs Corporation Multi-tone cancellation phrase and background
US4582346A (en) * 1984-05-08 1986-04-15 Moore Business Forms, Inc. Document security system
CN85100700A (zh) * 1985-04-01 1987-01-31 陆伯祥 计算机莫尔条纹证件及其识别系统
FI80405C (fi) * 1988-03-24 1990-06-11 Suomen Pankin Setelipaino Tryckalster saekerstaellt med varningsfigur och foerfarande foer dess utarbetning.

Also Published As

Publication number Publication date
EP0597056A1 (fr) 1994-05-18
WO1993025038A1 (fr) 1993-12-09
US5524933A (en) 1996-06-11
JPH06511611A (ja) 1994-12-22

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Legal Events

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FZDE Dead